Answer:
Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.
Explanation:
Answer:
tobacco use, physical inactivity, unhealthy diet and the harmful use of alcohol
Some types of fish and shellfish contain healthy omega oils that will help the development of the fetus's nervous system. However, some contain toxins and possibly viruses (oysters, for example) and must be avoided during pregnancy.
Answer:
The answer is true.
Explanation:
A bow works like a spring. The flexing limbs of the bow store potential energy when you begin to pull back on a bowstring. But by exerting more energy, storing it in the bow and then only using the lightweight string to push the arrow, more power is transferred to the arrow.
